NOAO is building a large format (8Ktimes 8K pixels) camera using a mosaic of eight 2048times 4096 CCDs with eight amplifier readouts initially, and eventually up to 16. This paper describes the data reduction architecture and software being developed for this instrument. The real time display and data capture are described by Tody (1997) and the data format for recording data is described in separate paper by Valdes (1997).